#include"string.h"

int main()
{
	xlf::string s1("hello world");
	cout << s1.c_str() << endl;

	for (size_t i = 0; i < s1.size(); i++)
	{
		s1[i]++;
	}

	for (size_t i = 0; i < s1.size(); i++)
	{
		cout << s1[i] << " ";
	}
	cout << endl;

	for (auto& e : s1)
	{
		cout << e << endl;
	}

	const xlf::string s3("xxxxxxxxxxx");
	string::const_iterator it3 = s3.begin();
	while (it3 != s3.end())
	{

	}



	return 0;
}